Finding the Fourth Proportional to 6,477.90, 8,953.30 and 5,710.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,477.90 : 8,953.30 = 5,710.02 : x
2. Step 2: Convert to fraction form
   6,477.90/8,953.30 = 5,710.02/x
3. Step 3: Cross multiply
   6,477.90x = 8,953.30 × 5,710.02
4. Step 4: Simplify right side
   6,477.90x = 51,123,522.07
5. Step 5: Solve for x
   x = 51,123,522.07/6,477.90
6. Step 6: Final answer
   x = 7,891.99